Case Studies in Chemical and Environmental Engineering, Journal Year: 2024, Volume and Issue: 10, P. 101018 - 101018
Published: Nov. 13, 2024
Language: Английский
Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)
Published: June 17, 2023
Abstract In this work, the MCM-48 mesoporous material was prepared and characterized to apply it as an active adsorbent for adsorption of 4-nitroaniline (4-Nitrobenzenamine) from wastewater. The characterizations were specified by implementing various techniques such as; scanning electron microscopy (SEM), Energy dispersive X-ray analysis (EDAX), diffraction (XRD), Brunauer–Emmett–Teller (BET) surface area, pore size distribution (PSD), Fourier transform infrared (FTIR). batch results showed that very equilibrium analyzed applying isotherms like Langmuir, Freundlich, Temkin. maximum experimental uptake according type I Langmuir found be 90 mg g −1 approximately. model with determination coefficient R 2 = 0.9965 is superior than Freundlich 0.99628 Temkin 0.9834. kinetic investigated pseudo 1st order, 2nd Intraparticle diffusion model. demonstrated regression coefficients are so high 0.9949, mean order hypothesis mechanism process appears well-supported. findings kinetics studies indicate a chemisorption physical process.
Language: Английский
Citations
67
Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 318, P. 100384 - 100384
Published: April 1, 2024
Advanced oxidation processes (AOPs) have become increasingly more useful and necessary in the past few decades because they can degrade a wide range of organic inorganic contaminants. The toxic recalcitrant nature many contaminants obstruct traditional biological processes, making treatment ineffective. Therefore, there is pressing need to develop apply effective for industrial wastewater, polluted by pharmaceuticals, dyes, other industries. AOPs successful technologies treating wastewater remove contaminants, reduce toxicity, improve biodegradability, including using ultraviolet (UV) visible light (VIS) combined with homogenous or heterogeneous catalysts. This review shows that Fenton process semiconductor material greatly facilitates removing various pollutants. Additionally, photocatalysis research ongoing this method effectively removes emerging In addition, challenges, needs, future uses are described performance hasten large-scale implementation water treatment.
Language: Английский
Citations
63
Chemical Engineering and Processing - Process Intensification, Journal Year: 2023, Volume and Issue: 192, P. 109503 - 109503
Published: Aug. 6, 2023
Language: Английский
Citations
53
Desalination and Water Treatment, Journal Year: 2023, Volume and Issue: 300, P. 120 - 129
Published: July 1, 2023
Language: Английский
Citations
51
Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 317, P. 100033 - 100033
Published: Jan. 1, 2024
This work investigates removing the anionic azo dye from wastewater using Fe3O4 magnetic nanoparticle adsorbents in a batch system. The effects of adsorbent dosage (0.1–0.5 g/L), pH (2−10), concentration (5–45 mg/L), contact duration (0–140 min), and shaking speed (100–180 rpm) on removal (adsorption) efficiency at 23 °C were investigated. Besides kinetic isothermal studies applied as well to improve commercial adsorbents' performance dyes. nanoparticles achieve maximum 99.99% optimum values investigated parameters: 3 g/L dose, 5 mg/L concentration, 2, 180 rpm 120 min °C. Langmuir adsorption isotherm has highest correlation coefficient (R2 = 0.977) compared Freundlich, Temkin isotherms; absorption is estimated be 0.4158 mg/g. equilibrium parameter (RL) model are between 0 1, indicating isotherm's favorability. rates follow pseudo-first-order kinetics, with R2 0.973.
Language: Английский
Citations
50
Water Practice & Technology, Journal Year: 2024, Volume and Issue: 19(7), P. 2799 - 2815
Published: June 25, 2024
ABSTRACT This study investigated the removal of a typical organic pollutant methylene blue (MB) dye from wastewater by prepared mesoporous SBA-15 adsorbent in continuous adsorption system (fixed-bed column). The structural and textural properties were determined using different characterization techniques. experiments assessed bed height effect, initial concentration, flow rate on breakthrough curve. kinetic constants curves obtained Thomas Yan models. results revealed that has an excellent efficiency for use system. findings explain MB achieved maximum uptake (84 mg/g) at 6 cm height, 0.5 mL/min rate, 30 mg/L concentration MB. can be efficiently regenerated calcination re-employed 5 times fixed-bed without significant loss its capacity solutions. As result, was as appropriate media to suggests is feasible effectively wastewater.
Language: Английский
Citations
24
Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1304, P. 137688 - 137688
Published: Jan. 30, 2024
Language: Английский
Citations
18
Water Practice & Technology, Journal Year: 2023, Volume and Issue: 18(9), P. 2136 - 2150
Published: Aug. 30, 2023
Abstract MCM-48, which is particulate and nanoporous, was formulated to actively remove aniline (AN) (i.e., benzenamine) from wastewater. MCM-48 characterized by several methods. It found that the highly active in adsorbing The Langmuir, Freundlich, Temkin isotherms were employed evaluate adsorption equilibrium. At 100 94 mg g−1, maximum theoretical experimental absorption of aniline, respectively, fit with a Type I Langmuir isotherm. model optimal comparison Freundlich for AN onto mesoporous material MCM-48. results these kinetics models investigated using both pseudo-first- pseudo-second-order as well utilized intraparticle diffusion. demonstrated rapid most closely agreed pseudo-first-order model. kinetic studies revealed presence physical chemisorption. potential mechanisms include following: (1) hydrogen bonding, (2) π-π interactions, (3) electrostatic interaction, (4) hydrophobic interactions. solution's pH, ionic strength, ambient temperature also played essential roles adsorption.
Language: Английский
Citations
40
Civil Engineering Journal, Journal Year: 2024, Volume and Issue: 10(5), P. 1645 - 1661
Published: May 1, 2024
Triclosan (TCS), a common antibacterial agent found in numerous personal care products, has been detected wastewater and surface water is now of significant environmental concern due to its health impacts. To mitigate this issue, various treatment methods have explored. This study investigated the efficacy Macadamia nut shell activated carbon (MAC) as an economical adsorbent for triclosan removal. A pulsed-bed column adsorption technique was applied enhance capacity prolong operational lifespan column. Batch experiments were conducted explore parameters capacity. Column carried out investigate breakthrough curves associated parameters. In batch experiments, MAC exhibited high TCS 119.05 mg/g, optimal conditions determined. Adsorption kinetics followed pseudo-second-order model, equilibrium data well-fitted by both Langmuir Freundlich isotherm models. showed superior performance compared fixed-bed under specific (flow rate: 10 mL/min, initial concentration: 60 mg/L, bed height: cm) removal height only 6 cm, successfully enhancing 53.40 mg/g extending 5,280 minutes. Adapting columns from product industry led extension life with increased minimized use adsorbents practical environmentally friendly method. Doi: 10.28991/CEJ-2024-010-05-019 Full Text: PDF
Language: Английский
Citations
11
Environment Development and Sustainability, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 17, 2025
Language: Английский
Citations
1